Hi Aleksey,
On Tue, Jul 14, 2009 at 7:46 PM, Aleksey
Gogolev<aleksey.gogo...@gmail.com> wrote:
>
> Hi Minh,
>
> Thank you!
> I entered the command and got the same output as yours, but still no luck :(
> After I restarted Sage and tried to load library I got the ImportError:
>
> sage:r.library("cluster")
> ---------------------------------------------------------------------------
> ImportError Traceback (most recent call last)
>
> /root/sage-4.0.2-linux-CentOS_release_5.2_Final-i686-Linux/<ipython
> console> in <module>()
>
> /root/sage-4.0.2-linux-CentOS_release_5.2_Final-i686-Linux/local/lib/python2.5/site-packages/sage/interfaces/r.pyc
> in library(self, library_name)
> 554 ret = self.eval('require("%s")'%library_name)
> 555 if 'there is no package' in ret:
> --> 556 raise ImportError, "there is no package called
> '%s'"%library_name
> 557 else:
> 558 try:
>
> ImportError: there is no package called 'cluster'
>
> I guess it's also some newbie mistake.
Not at all; you're not doing anything wrong. This is a known error;
see ticket #6379 at
http://www.sagetrac.org/sage_trac/ticket/6379
which already has a patch and positive review. But after applying that
patch, installing cluster, restart Sage, and import the library
cluster, Sage still doesn't recognize the cluster package. For
example, here is what I did under Sage 4.1:
sage:
hg_sage.apply("http://www.sagetrac.org/sage_trac/raw-attachment/ticket/6379/trac_6379-Rdoctest.patch";)
<applying the above patch>
sage: exit
Exiting SAGE (CPU time 0m0.09s, Wall time 0m18.86s).
[mv...@sage sage-4.1-sage.math.washington.edu-x86_64-Linux]$ ./sage -br main
<now install cluster>
sage: r.install_packages("cluster")
<now restart Sage>
sage: exit
Exiting SAGE (CPU time 0m0.50s, Wall time 0m22.15s).
[mv...@sage sage-4.1-sage.math.washington.edu-x86_64-Linux]$ ./sage -br main
<now import the package cluster>
sage: r.library("cluster")
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
/home/mvngu/.sage/temp/sage.math.washington.edu/16587/_home_mvngu__sage_init_sage_0.py
in <module>()
/scratch/mvngu/sage-4.1-sage.math.washington.edu-x86_64-Linux/local/lib/python2.6/site-packages/sage/interfaces/r.pyc
in library(self, library_name)
557 # not all warnings (e.g. "closing unused
connection 3") are fatal
558 if 'library(' in ret: # locale-independent key-word
--> 559 raise ImportError, "%s"%ret
560 else:
561 try:
ImportError: Loading required package: cluster
Warning message:
In library(package, lib.loc = lib.loc, character.only = TRUE,
logical.return = TRUE, :
there is no package called 'cluster'
The error message is much "friendlier" than previously. However, from
the output I suspect that cluster has not been installed in a
directory where R (the one bundled with Sage) recognizes. Just a
guess.
Anyway, from the error message you posted above, it looks to me that
you have installed Sage as root. In fact in the root home directory
/root. This is *strongly* discouraged for security reasons. If you're
the only person using Sage on your system, then you should install
Sage as a regular user, not as a superuser. If other people on your
system will be using Sage, then you can install Sage in
/usr/local/bin/ or something like that, but I don't recommend the
directory /root.
--
Regards
Minh Van Nguyen
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